Miles "Tails" Prower, often called Tails is Sonic's best friend and sidekick that always helps him. He looks up to Sonic, and wants to be like him. Tails is always been in the good side of the Sonic universe except Sonic & Eggman: Dynamic Duo, where he is shown as one of Sonic's past enemies, and Sonic Heroes 2, where he is not in Sonic's good books.

Tails appears in Pikachu's Final Destiny as a cameo character. He can be seen in Pokemon Plaza playing hide and seek with Sonic, Amy and Knuckles. He is also shown to run away from Mewtwo's evil plans.

Tails kills Eggman in Erased Memories 3. He also wins Kystal's heart and they become husband and wife. They also rebuild the Star Fox and it's renamed The Kystal.

Soul of Evil

Tails turned evil along with Luigi by the Fire of Hated, and helps the other villains to get the Soul of Evil for Bowser and Dr. Eggman. After he is defeated by Sonic, he turns good again.

Sonic & Eggman: Dynamic Duo

In Sonic & Eggman: Dynamic Duo, Tails seems to be very angry with Sonic for unknown reasons (possibly too many arguments between them or the Fire of Hated is still inside him). He is pictured holding a baseball bat, getting ready to hit Sonic with it.

Tails gets brainwashed by Dr. Eggman, along with Sonic and the others, to destroy Mario and Friends. He rides in an electric-covered machine, launching missiles on Mario . Tails will become playable after he was defeated in World 3.